BBC News is tapping Mary Hockaday to fill Peter Horrocks’ shoes as head of its integrated multimedia newsroom. The separate structures of the Radio News, News Interactive and TV News units were flattened in autumn of 2007 and Horrocks was picked to lead the operation, but he’s now left to run BBC World Service. Hockaday was already deputy head under Horrocks and had previously been deputy head of Radio News. News site Paul Brannan last year became “emerging platforms” editor and former News Interactive head Pete Clifton is still head of multimedia journalism editorial development across the integrated unit.